The paper describes the construction of a lexical transducer for Korean that can be used for stemming and generation. The method contains two innovations: (1) two h.'vel rules ms well-formedness constraints in the initial phase; (2) the combination of intersection and composition of rule transducers in a dee[) cascade ['or the final re.suit. Keywords Korean Lexieal Transducer, 'Pwo level Morphology, Morphotaeties, Ordered ll,ules